Diving and snorkelling on Flores: dive sites, season and who runs trips

Flores is a long way from anywhere, and the water shows it. The official Azores dive portal lists eight dive sites around the island, mostly caves, walls and offshore reefs. Seven of them are reached from the quay in Santa Cruz, none more than 20 minutes away by boat. Picking a site is the easy part. The harder questions are when to come, how experienced you need to be, and how to book when only one dive centre is listed for the island.

This guide covers the sites, the season, the one dive centre on the official list, and what to do if you would rather stay at the surface with a mask and snorkel.

Every site here is for certified divers. Five of the eight are rated for all divers or Open Water: Catedral, Ponta da Caveira, Ilhéu do Garajau, Gruta do Galo and the shallow top of Baixa do Amigo. The other three, Gruta dos Enxareús, Baixa do Morro and Baixa Rasa, are rated Advanced Open Water, because of depth, current or narrow cave passages.

Bring your certification card and logbook. The dive centre says it takes beginners as well as advanced divers, but a UK tour operator's 2026 activities sheet for Flores describes the diving it sells there as "for experienced divers only". If you have never dived, ask before you travel whether anyone is running try dives that season, and do not build the trip around it.

All figures below come from the site pages on dive.visitazores.com.

Two minutes by boat from Santa Cruz Quay. A reef at 6 to 8 metres drops to a large fissure at about 15 metres that opens into a cave and an arch. Average depth is 18 metres, maximum 30. Currents are weak, and the portal rates it for all divers. Look for dusky groupers, barred hogfish and black coral in the deeper part.

Five minutes from the quay. A vertical wall runs east with cracks and small caves left by lava tubes, and congers and moray eels live in the holes. Average 17 metres, maximum 25, weak currents. The portal recommends it for beginners and for night dives.

Ten minutes out, about 400 metres offshore. The wall on the west side of the islet goes down to 30 metres and is sheltered from the current. Morays and dusky groupers sit in the deeper part, with clouds of Azores chromis around them. The portal rates it for all divers and says it also works for snorkelling, depending on the route the crew takes.

Ten minutes from the quay and rated for Advanced Open Water. The cave splits into two corridors about 30 metres long, just over a metre wide in places. Common stingrays come in and out, often more than half a dozen at a time. Average 15 metres, maximum 23. Outside the cave is a small bay with grey triggerfish and jacks.

The portal counts it among the island's best-known dives. It is 20 minutes by boat from Santa Cruz: a cavern open to the surface, with a freshwater waterfall pouring into the sea by the entrance, so you can start and finish the dive under it. Schools of white trevallies hang in the cavern. Average 18 metres, maximum 25, rated for Open Water divers.

The reefs, called baixas, are where the big fish are. They are also where the current is.

• Baixa do Amigo: 15 minutes from Santa Cruz, about 200 metres off the east coast. The top sits at around 15 metres and suits most divers. It drops to 40 metres, and that part is for experienced divers. Currents are moderate. Almaco jacks, yellowmouth barracudas, white trevallies and Atlantic bonitos come through after the baitfish.
• Baixa do Morro: off the south coast, opposite Fajã de Lopo Vaz and about a mile out. The edges are at 15 to 25 metres and the south side falls to 60. Moderate to strong currents, Advanced Open Water only.
• Baixa Rasa: the one west-coast site, 10 minutes from the quay at Fajã Grande. A reef drops abruptly to 25 metres among large boulders, with schools of pelagic fish. Average 27 metres, moderate to strong currents, Advanced Open Water.

Divers based on Flores can also dive Corvo, 13 miles to the north. The site to ask about is Caneiro dos Meros, three minutes by boat from the quay at Vila do Corvo. The portal gives it five stars and says it has the highest concentration of dusky groupers in the Azores, often a dozen or more on one dive. Fishermen and divers set it up as a voluntary marine reserve. It is a deeper dive, averaging 25 metres and reaching 45, and it is rated for Advanced Open Water.

A Corvo dive day depends on the crossing. The Corvo boat trip in the same 2026 activities sheet runs only from 10 June to 20 September, and a rough sea between the islands cancels it. Ask the dive centre what a Corvo dive costs and how often it goes. The Corvo diving guide covers the island's other sites. If you want to see Corvo on land as well, the Corvo day trip guide covers the boat and the crater.

The portal names June to September as the best months. Water is 16 to 22 °C on average across the year and peaks at 24 to 25 °C late in summer. Visibility is at its best from August to September or October, often more than 30 metres, and drops to 10 to 15 metres in spring.

For suits, the portal suggests 5 or 7 mm wet or semi-dry from June to October, and 7 or 10 mm, or a drysuit, from November to May. The 2026 activities sheet puts the diving season on Flores at April to November and says suits can be hired locally for about €15 per person.

Late August and September give you the warmest, clearest water. That is still high season on Flores, so book flights and rooms early. The summer on Flores guide covers what else fills up.

The official dive portal lists one dive centre on Flores: Extremocidente, on the Avenida dos Baleeiros in Santa Cruz das Flores, phone +351 292 590 100 or +351 918 390 189. The portal's website link for it points to the Hotel Ocidental. Its own site, extremocidente.pt, offers diving for beginners and advanced divers alongside Corvo trips, island tours and guided walks. It publishes no prices; booking is a request form that the company confirms.

The 2026 sheet says dives on Flores are booked and paid locally and that the price includes the boat, skipper, a full tank, weights and the guide. It gives no figure. Ask for the current price per dive, whether a Corvo dive costs extra, and what equipment you can hire, and get it in writing before you arrive.

The same sheet gives a minimum of eight people for its boat activities. With one listed operator, a minimum group size and weather that cancels trips, plan for fewer dives than days. If diving is the main reason for the trip, give yourself a spare day or two.

You do not need a certificate to see the caves. The cave and waterfall boat trips from Santa Cruz include a snorkelling stop when the sea allows it.

• Flores Fishing runs a three-hour trip from Ponta da Caveira to Ponta Delgada past the Galo and Enxaréus caves, with a snorkelling stop. In 2026 it charged €60 per person, with a minimum of two.
• Living Tours sells a similar three-hour caves, waterfalls and snorkelling trip, daily at 10:00 from Cais das Poças in Santa Cruz. It shows no price online and asks you to confirm availability by phone or WhatsApp first.

The boat trips guide compares the trips in more detail. The natural pools at Altio in Santa Cruz and at Fajã Grande have lifeguards in season and are the easiest places to snorkel from the shore. The rest of the coast is open to the Atlantic, so swim off rocks only on a calm day and with someone watching.

Flores has its own hyperbaric chamber, at the health centre in Santa Cruz das Flores, which also serves Corvo. The other two in the Azores are in Ponta Delgada and Horta.

Plan your last dive around the flight out. Divers Alert Network recommends at least 12 hours between a single no-decompression dive and flying, and at least 18 hours after several dives in a day or several days of diving. Flights from Flores are often moved by weather, so leave the last day dry.

Can beginners dive on Flores?

Certified Open Water divers have five sites rated for them, including Catedral, Ponta da Caveira and Gruta do Galo. If you are not certified, a snorkelling boat trip is the safer plan.

What is the best month to dive Flores?

August and September, for the warmest water and visibility that often exceeds 30 metres. June and July are good too. In spring the water is cooler and visibility drops to 10 to 15 metres.

How much does a dive cost on Flores?

The operator does not publish prices, and the 2026 activities sheet that mentions diving on Flores gives none either. Ask when you book, and ask separately about Corvo dives and equipment hire.

Is there a decompression chamber on Flores?

Yes, at the health centre in Santa Cruz das Flores.